How to look who loads the channel on cisco asa 5510?

Question

Cisco

We have a Cisco ASA 5510 as a gateway. There is access to the console and ASDM.
From time to time, someone clogs the entire channel with traffic. Tried to cut the speed, but that's not an option.
How to calculate the villain?

ASA5510# sh version

Cisco Adaptive Security Appliance Software Version 8.4(3)
Device Manager Version 6.4(7)

Answer 1

you can set up the collection of statistics on netflow and look at the collector for beautiful graphs for each of the clients

Answer 2

Isn't it possible to show ip cache flow on the wasp?